llvm-6502/docs
Duncan P. N. Exon Smith 1ef70ff39b IR: Make metadata typeless in assembly
Now that `Metadata` is typeless, reflect that in the assembly.  These
are the matching assembly changes for the metadata/value split in
r223802.

  - Only use the `metadata` type when referencing metadata from a call
    intrinsic -- i.e., only when it's used as a `Value`.

  - Stop pretending that `ValueAsMetadata` is wrapped in an `MDNode`
    when referencing it from call intrinsics.

So, assembly like this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata !{i32 %v}, metadata !0)
      call void @llvm.foo(metadata !{i32 7}, metadata !0)
      call void @llvm.foo(metadata !1, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{metadata !3}, metadata !0)
      ret void, !bar !2
    }
    !0 = metadata !{metadata !2}
    !1 = metadata !{i32* @global}
    !2 = metadata !{metadata !3}
    !3 = metadata !{}

turns into this:

    define @foo(i32 %v) {
      call void @llvm.foo(metadata i32 %v, metadata !0)
      call void @llvm.foo(metadata i32 7, metadata !0)
      call void @llvm.foo(metadata i32* @global, metadata !0)
      call void @llvm.foo(metadata !3, metadata !0)
      call void @llvm.foo(metadata !{!3}, metadata !0)
      ret void, !bar !2
    }
    !0 = !{!2}
    !1 = !{i32* @global}
    !2 = !{!3}
    !3 = !{}

I wrote an upgrade script that handled almost all of the tests in llvm
and many of the tests in cfe (even handling many `CHECK` lines).  I've
attached it (or will attach it in a moment if you're speedy) to PR21532
to help everyone update their out-of-tree testcases.

This is part of PR21532.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@224257 91177308-0d34-0410-b5e6-96231b3b80d8
2014-12-15 19:07:53 +00:00
..
_static
_templates
_themes/llvm-theme
CommandGuide [llvm-symbolizer] Introduce the -dsym-hint option. 2014-10-17 00:50:19 +00:00
HistoricalNotes
TableGen Remove neverHasSideEffects support from TableGen CodeGenInstruction. Everyone should use hasSideEffects now. 2014-11-26 04:11:14 +00:00
tutorial Add argument variable support to the debug info tutorial 2014-12-09 00:28:24 +00:00
AliasAnalysis.rst
ARM-BE-bitcastfail.png
ARM-BE-bitcastsuccess.png
ARM-BE-ld1.png
ARM-BE-ldr.png
Atomics.rst [sphinx cleanup] Fix unexpected indentation warning introduced by r218937 2014-10-03 12:28:48 +00:00
BigEndianNEON.rst
BitCodeFormat.rst Prologue support 2014-12-03 02:08:38 +00:00
BlockFrequencyTerminology.rst
BranchWeightMetadata.rst
Bugpoint.rst
CMake.rst Fix grammar-o. 2014-12-03 20:58:23 +00:00
CMakeLists.txt [OCaml] Move Llvm.clone_module to its own Llvm_transform_utils module. 2014-12-01 19:50:39 +00:00
CodeGenerator.rst [sphinx cleanup] 2014-09-10 20:43:03 +00:00
CodingStandards.rst Introduce Go coding standards for LLVM. 2014-10-14 00:40:53 +00:00
CommandLine.rst Update the example of using a command-line option custom parser to 2014-10-13 21:11:22 +00:00
CompilerWriterInfo.rst Update documentation with link to Sea Islands documentation 2014-10-06 18:31:09 +00:00
conf.py
CoverageMappingFormat.rst Docs: add documentation for the coverage mapping format. 2014-08-19 17:05:58 +00:00
DebuggingJITedCode.rst
DeveloperPolicy.rst
doxygen.cfg.in
doxygen.css
doxygen.footer
doxygen.header
doxygen.intro
Dummy.html
ExceptionHandling.rst
ExtendedIntegerResults.txt
ExtendingLLVM.rst Correct path to regression tests in ExtendingLLVM 2014-11-24 19:40:07 +00:00
Extensions.rst
FAQ.rst
GarbageCollection.rst
gcc-loops.png
GetElementPtr.rst
GettingStarted.rst Require python 2.7. 2014-12-12 15:29:31 +00:00
GettingStartedVS.rst Require python 2.7. 2014-12-12 15:29:31 +00:00
GoldPlugin.rst Docs: give binutils/gold instructions for CMake too. 2014-11-04 02:16:03 +00:00
HowToAddABuilder.rst
HowToBuildOnARM.rst
HowToCrossCompileLLVM.rst
HowToReleaseLLVM.rst
HowToSetUpLLVMStyleRTTI.rst
HowToSubmitABug.rst Delete -std-compile-opts. 2014-10-16 20:00:02 +00:00
HowToUseAttributes.rst
HowToUseInstrMappings.rst
InAlloca.rst
index.rst Added documentation for MergeFunctions pass: 2014-12-10 17:42:01 +00:00
LangRef.rst IR: Make metadata typeless in assembly 2014-12-15 19:07:53 +00:00
Lexicon.rst [docs] Document what "NFC" means in a commit message. 2014-09-06 00:19:16 +00:00
LinkTimeOptimization.rst Fix a typo in the documentation of LTO 2014-12-03 07:32:36 +00:00
linpack-pc.png
LLVMBuild.rst
LLVMBuild.txt
make.bat
Makefile [OCaml] PR14083, PR9606: Only pick *.odoc files from current build target. 2014-10-28 22:45:25 +00:00
Makefile.sphinx
MakefileGuide.rst
MarkedUpDisassembly.rst
MCJIT-creation.png
MCJIT-dyld-load.png
MCJIT-engine-builder.png
MCJIT-load-object.png
MCJIT-load.png
MCJIT-resolve-relocations.png
MCJITDesignAndImplementation.rst Minor typo. 2014-09-05 04:56:43 +00:00
MergeFunctions.rst Added documentation for MergeFunctions pass: 2014-12-10 17:42:01 +00:00
NVPTXUsage.rst
Packaging.rst
Passes.rst Added documentation for MergeFunctions pass: 2014-12-10 17:42:01 +00:00
Phabricator.rst
ProgrammersManual.rst Update my previous commit to fit 80 cols... 2014-09-25 10:58:16 +00:00
Projects.rst
R600Usage.rst R600/SI: Start implementing an assembler 2014-11-14 14:08:00 +00:00
re_format.7
README.txt
ReleaseNotes.rst Prologue support 2014-12-03 02:08:38 +00:00
ReleaseProcess.rst
SegmentedStacks.rst
SourceLevelDebugging.rst Update dwarf::ApplePropertyAttributes enum to meaningful values. 2014-10-08 14:59:44 +00:00
SphinxQuickstartTemplate.rst
StackMaps.rst
Statepoints.rst Add a section to Statepoint docs mentioning shared bugzilla search and standard mailing lists 2014-12-04 18:33:28 +00:00
SystemLibrary.rst
TableGenFundamentals.rst
TestingGuide.rst Require python 2.7. 2014-12-12 15:29:31 +00:00
TestSuiteMakefileGuide.rst
Vectorizers.rst
WritingAnLLVMBackend.rst configure.ac lives in autoconf/, not autotools/ 2014-11-10 22:36:04 +00:00
WritingAnLLVMPass.rst docs: Modernize some examples in WritingAnLLVMPass 2014-11-18 05:22:39 +00:00
yaml2obj.rst
YamlIO.rst

LLVM Documentation
==================

LLVM's documentation is written in reStructuredText, a lightweight
plaintext markup language (file extension `.rst`). While the
reStructuredText documentation should be quite readable in source form, it
is mostly meant to be processed by the Sphinx documentation generation
system to create HTML pages which are hosted on <http://llvm.org/docs/> and
updated after every commit. Manpage output is also supported, see below.

If you instead would like to generate and view the HTML locally, install
Sphinx <http://sphinx-doc.org/> and then do:

    cd docs/
    make -f Makefile.sphinx
    $BROWSER _build/html/index.html

The mapping between reStructuredText files and generated documentation is
`docs/Foo.rst` <-> `_build/html/Foo.html` <-> `http://llvm.org/docs/Foo.html`.

If you are interested in writing new documentation, you will want to read
`SphinxQuickstartTemplate.rst` which will get you writing documentation
very fast and includes examples of the most important reStructuredText
markup syntax.

Manpage Output
===============

Building the manpages is similar to building the HTML documentation. The
primary difference is to use the `man` makefile target, instead of the
default (which is `html`). Sphinx then produces the man pages in the
directory `_build/man/`.

    cd docs/
    make -f Makefile.sphinx man
    man -l _build/man/FileCheck.1

The correspondence between .rst files and man pages is
`docs/CommandGuide/Foo.rst` <-> `_build/man/Foo.1`.
These .rst files are also included during HTML generation so they are also
viewable online (as noted above) at e.g.
`http://llvm.org/docs/CommandGuide/Foo.html`.

Checking links
==============

The reachibility of external links in the documentation can be checked by
running:

    cd docs/
    make -f Makefile.sphinx linkcheck